Digestibilidad aparente de los ensilajes de residuos pesqueros en tilapias rojas (Oreochromis mossambicus x O. niloticus)
Digestibilidad aparente de los ensilajes de residuos pesqueros en tilapias rojas (Oreochromis mossambicus x O. niloticus)
Authors
Llanes, J.
Bórquez Ramírez, Aliro
Toledo, J.
De la Vega, J.
Bórquez Ramírez, Aliro
Toledo, J.
De la Vega, J.
Authors
Date
2012-03-04
Datos de publicación:
Zootecnia Tropical, Vol. 28, Nº4, 499-505, 2010
Keywords
Tilapias rojas - Digestibilidad - Ensilajes - Residuos pesqueros
Collections
Abstract
Mediante un diseño completamente aleatorizado con tres repeticiones, se determinó la digestibilidad in vivo
de nutrientes y energía de los ensilajes de residuos pesqueros en tilapias rojas (Oreochromis mossambicus x
O. niloticus). El ensilaje químico se preparo con ácido sulfúrico 98% (20 ml/kg) y ácido fórmico (10 ml/kg) y
el ensilaje biológico con miel de caña (150 g/kg) y yogurt (Lactobacilus bulgaris y streptococcus acidophilus;
30 g/kg). Se usó oxido crómico como indicador y las heces se recolectaron por un sifón desde el fondo de los
tanques. Se obtuvo que la digestibilidad aparente de algunos nutrientes difirió en función del tipo de ensilaje,
entre tanto la proteína digestible fue mayor para el ensilaje químico y la materia seca, calcio y fósforo para el
ensilaje biológico. Digestibilidades iguales (P>0,05) se presentó para los lípidos, cenizas y energía. Concluyendo
que los ensilajes de residuos pesqueros presentan alto valor nutricional, lo que constituyen una fuente de proteína
alternativa en la formulación de raciones para tilapias rojas.
By means of a design completely randomized with three repetitions, in vivo digestibility of nutrients and energy in fishing waste silages were determined for red tilapia (Oreochromis mossambicus x O. niloticus). Chemical silage prepared with sulphuric acid 98% (20 ml/kg) and formic acid (10 ml/kg) and the biological with sugar cane molasses (150 g/kg) and of yogurt (Lactobacilus bulgaris and streptococcus acidophilus; 30 g/kg). The chromic oxide was used as inert indicator and fecal sample were recollected by siphon from the bottom of tanks. As a result, the apparent digestibility of some nutrients differed from silage type; meanwhile protein was bigger for the chemical silage and the dry matter, calcium and phosphorus for the biological silage. Similar digestibility (P>0,05) was presented for lipids, ashes and energy. In conclusion, all this showed that the fishing waste silages present high nutritional value, that constitute an alternative- protein source in the formulation of rations for red tilapias.
By means of a design completely randomized with three repetitions, in vivo digestibility of nutrients and energy in fishing waste silages were determined for red tilapia (Oreochromis mossambicus x O. niloticus). Chemical silage prepared with sulphuric acid 98% (20 ml/kg) and formic acid (10 ml/kg) and the biological with sugar cane molasses (150 g/kg) and of yogurt (Lactobacilus bulgaris and streptococcus acidophilus; 30 g/kg). The chromic oxide was used as inert indicator and fecal sample were recollected by siphon from the bottom of tanks. As a result, the apparent digestibility of some nutrients differed from silage type; meanwhile protein was bigger for the chemical silage and the dry matter, calcium and phosphorus for the biological silage. Similar digestibility (P>0,05) was presented for lipids, ashes and energy. In conclusion, all this showed that the fishing waste silages present high nutritional value, that constitute an alternative- protein source in the formulation of rations for red tilapias.